Combined end mill easy to disassemble

Abstract

The utility model relates to the technical field of end milling cutters, and discloses an easy-to-disassemble combined end milling cutter which comprises a cutter head, a limiting plate is fixedly mounted on the outer surface of the lower end of the cutter head, a connecting circular ring is arranged on the outer surface of the lower end of the limiting plate, and a connecting cutter bar is fixedly connected to the outer surface of the lower end of the connecting circular ring. A fixing mechanism is movably installed in an inner cavity of a connecting circular ring, a connecting block is fixedly connected to the lower end of a limiting plate, and inserting blocks are fixedly installed on the outer surfaces of the two sides of the connecting block. When the device is used, through the arranged connecting structure, the tool bit and the tool bar can be freely disassembled and assembled, and the tool bar can be continuously used; the connecting stability of the cutter head and the cutter bar is improved, the device does not need to be integrally scrapped, the production cost is greatly saved, through the arranged fixing mechanism, connection is more stable, the cutter head and the cutter bar can be prevented from being disconnected from the threaded connection position, the whole cutter body is prevented from being damaged, the service life is prolonged, and better use prospects can be brought.

Description

Technical Field

[0001] The utility model relates to the technical field of end mills, in particular to an easily detachable combined end mill. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling processing. When working, each tooth cuts off the excess of the workpiece intermittently in turn. It is a type of metal cutting tool. According to the structural form, milling cutters are divided into face milling cutters, end mills, three-face milling cutters, angle milling cutters and chamfering milling cutters. End mills are commonly used on CNC machine tools. There are cutting edges on the cylindrical surface and end face of the end mill. They can cut at the same time or separately. When working, each tooth cuts off the excess of the workpiece intermittently in turn. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines.

[0003] However, it still has some disadvantages. For example, most of the existing milling cutters are processed in one piece, and the cutter head is easy to wear. Once the blade of the milling cutter is seriously damaged by collision and wear, it needs to be replaced as a whole, which means that the whole milling cutter must be discarded. It is not convenient to disassemble and replace the head part, which causes waste of materials and increase of equipment cost.

[0004] In order to solve the above problems, the present application proposes an easily disassembled combined end mill. Utility Model Content

[0005] The utility model aims to provide an easily disassembled combined end milling cutter to solve the problem in the prior art that the head part is easy to wear and difficult to replace, as mentioned in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an easily detachable combined end mill, comprising a cutter head, a limit plate fixedly installed on the lower end outer surface of the cutter head, a connecting ring is provided on the lower end outer surface of the limit plate, a connecting tool rod is fixedly connected to the lower end outer surface of the connecting ring, and a fixing mechanism is movably installed in the inner cavity of the connecting ring.

[0007] Preferably, the lower end of the limiting plate is fixedly connected to a connecting block, and plug blocks are fixedly installed on the outer surfaces of both sides of the connecting block. A connecting and fixing groove is opened on the outer wall of the lower end of the connecting block, and the connecting and fixing groove is located at the lower end of the plug block. A connecting threaded rod is fixedly connected to the outer surface of the lower end of the connecting block.

[0008] Preferably, a sliding groove is provided at the front end of the connecting ring, a movable hole and an insertion groove are provided in the inner cavity of the connecting ring, and the insertion groove is located at the upper end of the movable hole, a positioning bolt is movably installed on one side of the insertion groove, a positioning hole is provided at the lower end of the insertion groove, and a threaded hole is provided in the inner cavity of the connecting knife rod.

[0009] Preferably, the fixing mechanism includes an adjusting button, an adjusting screw, a limit block, an adjusting block, a fixed block and an anti-slip pad, one side of the adjusting button is fixedly connected to the adjusting screw, the outer surface of one side of the adjusting screw is fixedly installed with a limit block, the outer wall of the adjusting screw is slidably connected to the adjusting block, the rear end of the adjusting block is fixedly connected to the fixed block, and the inner outer surface of the fixed block is fixedly installed with an anti-slip pad.

[0010] Preferably, the number of the plug block, insertion slot and positioning bolt are two groups, the plug block is detachably connected to the inner cavity of the insertion slot, the lower end of the positioning bolt is detachably connected to the inner cavity of the positioning hole, and the lower end outer surface of the limiting plate is tightly fitted with the upper end outer surface of the connecting ring.

[0011] Preferably, the outer wall of the connecting threaded rod is threadably connected to the inner cavity of the threaded hole.

[0012] Preferably, the anti-slip pad is movably located in the inner cavity of the movable hole, and the inner side of the anti-slip pad is detachably connected to the outer wall of the connecting block, one side of the adjustment block is movably located on one side of the sliding groove, the fixed blocks are arranged in two groups, and the fixed blocks are arranged in an arc shape.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model makes it possible for the cutter head and the cutter rod to be freely disassembled and assembled through the cooperation of the connecting ring, the connecting tool rod, the connecting block, the inserting block, the connecting fixing groove, the connecting threaded rod, the sliding groove, the movable hole, the inserting groove, the positioning bolt, the positioning hole and the threaded hole, and the cutter rod can be continuously utilized. The connecting threaded rod is inserted into the connecting tool rod and threadedly connected and fixed with the threaded hole, and the inserting block is inserted into the inserting groove for fixing. When the positioning bolt is fixed in the positioning hole, the insertion groove is closed, thereby increasing the stability of the connection between the cutter head and the cutter rod, so that the device does not need to be scrapped as a whole, thereby greatly saving the production cost.

[0015] The utility model makes the connection more stable through the cooperation of the adjusting button, adjusting screw rod, limiting block, adjusting block, fixing block and anti-skid pad in the fixing mechanism, and drives the adjusting screw rod to operate through the adjusting button, thereby driving the adjusting block to slide, so that the fixing block drives the anti-skid pad to tighten the connecting fixing groove on the outer side of the connecting block through the movable hole, and also prevents the cutter head and the cutter rod from being disconnected from the threaded connection, thereby damaging the entire cutter body and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an easily detachable combined end mill of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the cutter head connection part of an easily detachable combined end mill of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a connecting rod of an easily detachable combined end mill of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the connecting ring part of an easily detachable combined end mill of the utility model;

[0020] Figure 5 This is a schematic diagram of the fixing mechanism structure of an easily detachable combined end mill of the utility model;

[0021] In the figure: 1. cutter head; 2. limit plate; 3. connecting ring; 4. connecting cutter rod; 5. fixing mechanism; 6. connecting block; 7. insert block; 8. connecting fixing groove; 9. connecting threaded rod; 10. sliding groove; 11. movable hole; 12. insert groove; 13. positioning bolt; 14. positioning hole; 15. threaded hole; 501. adjusting button; 502. adjusting screw rod; 503. limit block; 504. adjusting block; 505. fixing block; 506. anti-slip pad. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-Figure 2 The utility model provides a technical solution: an easily detachable combined end milling cutter, comprising a cutter head 1, a limit plate 2 is fixedly installed on the outer surface of the lower end of the cutter head 1, a connecting ring 3 is arranged on the outer surface of the lower end of the limit plate 2, a connecting tool rod 4 is fixedly connected to the outer surface of the lower end of the connecting ring 3, a fixing mechanism 5 is movably installed in the inner cavity of the connecting ring 3, a connecting block 6 is fixedly connected to the lower end of the limit plate 2, plug blocks 7 are fixedly installed on the outer surfaces of both sides of the connecting block 6, a connecting fixing groove 8 is opened on the outer wall of the lower end of the connecting block 6, and the connecting fixing groove 8 is located at the lower end of the plug block 7, and a connecting threaded rod 9 is fixedly connected to the outer surface of the lower end of the connecting block 6, so that the cutter head 1 and the connecting tool rod 4 can be freely disassembled and assembled.

[0024] In this embodiment, Figure 3-Figure 4As shown, a sliding groove 10 is provided at the front end of the connecting ring 3, a movable hole 11 and an insertion groove 12 are provided in the inner cavity of the connecting ring 3, and the insertion groove 12 is located at the upper end of the movable hole 11, a positioning bolt 13 is movably installed on one side of the insertion groove 12, a positioning hole 14 is provided at the lower end of the insertion groove 12, a threaded hole 15 is provided in the inner cavity of the connecting shank 4, the number of the insert block 7, the insertion groove 12 and the positioning bolt 13 are all two groups, the insert block 7 and the inner cavity of the insertion groove 12 are detachably connected, and the lower end of the positioning bolt 13 and the inner cavity of the positioning hole 14 are detachably connected The outer surface of the lower end of the limiting plate 2 is tightly fitted with the outer surface of the upper end of the connecting ring 3, the outer wall of the connecting threaded rod 9 is threadedly connected to the inner cavity of the threaded hole 15, the connecting tool rod 4 can be continuously used, the connecting threaded rod 9 is inserted into the connecting tool rod 4 and threadedly connected and fixed with the threaded hole 15, and the insert block 7 is inserted into the insertion groove 12 for fixing, and the positioning bolt 13 is fixed in the positioning hole 14 to close the insertion groove 12, thereby increasing the stability of the connection between the cutter head 1 and the connecting tool rod 4, so that the device does not need to be scrapped as a whole, and the production cost is greatly saved.

[0025] In this embodiment, Figure 5 As shown, the fixing mechanism 5 includes an adjusting button 501, an adjusting screw 502, a limiting block 503, an adjusting block 504, a fixing block 505 and an anti-skid pad 506. One side of the adjusting button 501 is fixedly connected to the adjusting screw 502, the limiting block 503 is fixedly installed on the outer surface of one side of the adjusting screw 502, the outer wall of the adjusting screw 502 is slidably connected to the adjusting block 504, the rear end of the adjusting block 504 is fixedly connected to the fixing block 505, the inner outer surface of the fixing block 505 is fixedly installed with an anti-skid pad 506, and the anti-skid pad 506 is movably located in the inner cavity of the movable hole 11, and The inner side of the anti-skid pad 506 is detachably connected to the outer wall of the connecting block 6, one side of the adjusting block 504 is movably located on one side of the sliding groove 10, the fixing block 505 is provided in two groups, and the fixing block 505 is provided in an arc shape, so that the connection is more stable, and the adjusting screw rod 502 is driven to operate by the adjusting button 501, thereby driving the adjusting block 504 to slide, so that the fixing block 505 drives the anti-skid pad 506 to tighten the connecting fixing groove 8 on the outer side of the connecting block 6 through the movable hole 11, and it can also prevent the cutter head 1 and the connecting cutter rod 4 from being disconnected from the threaded connection, thereby damaging the entire cutter body and extending the service life.

[0026] Working principle:

[0027] Through the cooperation of the connecting ring 3, the connecting tool rod 4, the connecting block 6, the insert block 7, the connecting fixing groove 8, the connecting threaded rod 9, the sliding groove 10, the movable hole 11, the insertion groove 12, the positioning bolt 13, the positioning hole 14, and the threaded hole 15, the cutter head 1 and the connecting tool rod 4 can be freely disassembled and assembled, and the connecting tool rod 4 can be continuously used. The connecting threaded rod 9 is inserted into the connecting tool rod 4 and threadedly connected and fixed with the threaded hole 15, and the insert block 7 is inserted into the insertion groove 12 for fixing. After the positioning bolt 13 is fixed in the positioning hole 14, the insertion groove 12 is closed, thereby increasing the stability of the connection between the cutter head 1 and the connecting tool rod 4. , so that the device does not need to be scrapped as a whole, which greatly saves production costs. The connection is more stable through the cooperation of the adjusting button 501, adjusting screw rod 502, limiting block 503, adjusting block 504, fixing block 505, and anti-skid pad 506 in the fixing mechanism 5. The adjusting screw rod 502 is driven to operate by the adjusting button 501, thereby driving the adjusting block 504 to slide, so that the fixing block 505 drives the anti-skid pad 506 to tighten the connecting fixing groove 8 on the outer side of the connecting block 6 through the movable hole 11, and it can also prevent the cutter head 1 and the connecting cutter rod 4 from being disconnected from the threaded connection, thereby damaging the entire cutter body and extending the service life.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. An easily disassembled combined end mill, comprising a cutter head (1), characterized in that: A limit plate (2) is fixedly mounted on the outer surface of the lower end of the cutter head (1); a connecting ring (3) is provided on the outer surface of the lower end of the limit plate (2); a connecting cutter rod (4) is fixedly connected to the outer surface of the lower end of the connecting ring (3); and a fixing mechanism (5) is movably mounted in the inner cavity of the connecting ring (3).

2. The easily detachable combined end mill according to claim 1, characterized in that: The lower end of the limiting plate (2) is fixedly connected to a connecting block (6), and plug blocks (7) are fixedly installed on the outer surfaces of both sides of the connecting block (6). A connecting fixing groove (8) is formed on the outer wall of the lower end of the connecting block (6), and the connecting fixing groove (8) is located at the lower end of the plug block (7). A connecting threaded rod (9) is fixedly connected to the outer surface of the lower end of the connecting block (6).

3. The easily detachable combined end mill according to claim 2, characterized in that: The front end of the connecting ring (3) is provided with a sliding groove (10), the inner cavity of the connecting ring (3) is provided with a movable hole (11) and an insertion groove (12), and the insertion groove (12) is located at the upper end of the movable hole (11), a positioning bolt (13) is movably installed on one side of the insertion groove (12), and a positioning hole (14) is provided at the lower end of the insertion groove (12), and the inner cavity of the connecting knife rod (4) is provided with a threaded hole (15).

4. The easily detachable combined end mill according to claim 1, characterized in that: The fixing mechanism (5) comprises an adjusting button (501), an adjusting screw rod (502), a limiting block (503), an adjusting block (504), a fixing block (505) and an anti-skid pad (506); one side of the adjusting button (501) is fixedly connected to the adjusting screw rod (502); the limiting block (503) is fixedly installed on the outer surface of one side of the adjusting screw rod (502); the outer wall of the adjusting screw rod (502) is slidably connected to the adjusting block (504); the rear end of the adjusting block (504) is fixedly connected to the fixing block (505); and the inner outer surface of the fixing block (505) is fixedly installed with an anti-skid pad (506).

5. The easily detachable combined end mill according to claim 2, characterized in that: The number of the insert block (7), the insertion groove (12) and the positioning bolt (13) are all two groups. The insert block (7) and the inner cavity of the insertion groove (12) are detachably connected. The lower end of the positioning bolt (13) and the inner cavity of the positioning hole (14) are detachably connected. The lower end outer surface of the limiting plate (2) and the upper end outer surface of the connecting ring (3) are tightly fitted.

6. The easily detachable combined end mill according to claim 2, characterized in that: The outer wall of the connecting threaded rod (9) is threadedly connected to the inner cavity of the threaded hole (15).

7. The easily detachable combined end mill according to claim 4, characterized in that: The anti-skid pad (506) is movably located in the inner cavity of the movable hole (11), and the inner side of the anti-skid pad (506) is detachably connected to the outer wall of the connecting block (6); one side of the adjusting block (504) is movably located on one side of the sliding groove (10); the fixing blocks (505) are arranged in two groups, and the fixing blocks (505) are arranged in an arc shape.

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